S-99397A322 Length 4 mm Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-term reliability in various environments
• Enhanced torque transmission and reduced cam-out thanks to the Torx Plus IP6 drive, allowing for precise installation and increased productivity
• Excellent holding power in plastic materials achieved through the tri-lobe shank design and thread forming (TRS) method, minimizing stripping and loosening
• Reliable fastening in plastic assemblies with a fully threaded, blunt tip design that prevents damage to components during installation
• Consistent performance and interchangeability due to metric sizing (M2.26 x 4mm) and standard thread pitch (0.91mm), ensuring easy integration
• Compliance with industrial safety standards including RoHS 3 and REACH, providing peace of mind for regulated applications

Professional Applications & Engineering Value

This M2.26 x 4mm TRS tapping screw is specifically engineered for plastic applications, where traditional fasteners may fail due to material brittleness or low pull-out strength. The thread forming (TRS) design with a tri-lobe shank creates strong, permanent threads in plastic without cutting, reducing stress cracking and ensuring a secure fit. Made from zinc-plated steel, it offers durability and corrosion resistance in humid or industrial settings. The Torx Plus IP6 drive enables high torque application with minimal tool wear, ideal for automated assembly lines. Commonly used in electronics, automotive trim, and consumer goods, this screw solves common issues like strip-out and vibration loosening, delivering reliable performance in demanding industrial fastening scenarios.

Specification Summary & Compliance

This screw features metric dimensions (M2.26 diameter, 4mm length) with a standard thread pitch of 0.91mm and fully threaded design for consistent engagement. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances. The thread forming (TRS) tapping method and tri-lobe shank cross-section provide precise fit in pre-drilled holes (recommended drill bit size: 5/64" or 0.0781"), supporting reliable performance in plastic materials without additional tapping requirements.